Flower-like SnO2/graphene composite for high-capacity lithium storage

• Published in: Applied surface science Vol. 258; no. 11; pp. 4917 - 4921
• Main Authors: Liu, Hongdong, Huang, Jiamu, Li, Xinlu, Liu, Jia, Zhang, Yuxin, Du, Kun
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 15.03.2012; Elsevier
• Subjects: Anode; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Condensed matter: structure, mechanical and thermal properties; Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; Flower-like SnO2; Graphene; Lithium-ion batteries; Physics; Flower-like SnO2; Lithium-ion batteries; Anode; Graphene; Lithium; Composite materials; Flower-like Sn0
• ISSN: 0169-4332; 1873-5584
• DOI: 10.1016/j.apsusc.2012.01.119

SEM image of (c) low-magnification of flower-like SnO2/graphene composite, (d) high-magnification of flower-like SnO2/graphene. [Display omitted] ► Flower-like SnO2/graphene composite and bare flower-like SnO2 are synthesized by a simple hydrothermal method. ► The SEM images show that the flower-like SnO2 nanorod clusters are 800nm in size and homogeneously adhere on graphene sheets. ► This flower-like SnO2/graphene composite displays superior Li-battery performance with large reversible capacity, excellent cyclic performance and good rate capability. Flower-like SnO2/graphene composite is synthesized by a simple hydrothermal method for high-capacity lithium storage. The as-prepared products are characterized by XRD, FTIR, FESEM, TGA and Nitrogen adsorption/desorption. The electrochemical performance of the flower-like SnO2/graphene composite is measured by cyclic voltammetry and galvanostatic charge/discharge cycling. The results show that the flower-like SnO2 nanorod clusters are 800nm in size and homogeneously adhere on graphene sheets. The flower-like SnO2/graphene composite displays superior Li-battery performance with large reversible capacity, excellent cyclic performance and good rate capability.